sys_basher (1) - Linux Man Pages
sys_basher: manual page for sys_basher version 2.0.2
NAMEsys_basher - manual page for sys_basher version 2.0.2
DESCRIPTIONsys_basher (c)2006-2015 Polybus Systems Corp., Westford, MA, USA
- Sys_basher is a multithreaded hardware exerciser. Sys_basher tests CPU, memory and disk I/O reliability. It also measures low level system performance.
- Run disk tests
- -dmi filename
- DMI binary file generated by dmidecode --dump-bin filename The DMI (BIOS) file allows sys_basher to determine which DIMM is bad The default DMI file is in /var/sys_basher/bios.bin
- Dutycycle n Duty cycle in percent, the default is 100 Inserts Sleeps between tests to reduce the overall CPU duty cycle
- Skip the memory tests, just run the disk, fp and memory bandwidth tests.
- Run floating point tests
- Print this help message
- -ho #,--hours #
- Run for at least # hours.
- Run integer tests
- -l #,--loops #
- Number of iterations.
- Run memory bandwidth
- -m,--mem [abprwv]
- Run memory tests
- No argument
- Run all memory tests
- Address = Data tests
- Bank tests
- Fixed pattern tests
- Random data tests
- Walking Ones/Zeros data tests
- Bit reversed address tests
- -mi,--minutes #
- Run for at least # minutes.
- -p n0..nx,--path n0..nx
- Directory path(s) for the disk tests, upto 32 paths maybe specified. The default path is ./
- -r name,--report name
- Report file name, generate name.rpt and name_xx.csv. Default is sys_basher.rpt and sys_basher_xx.csv
- Force use of swap space. This option is incredibly slow.
- Stop on Error, Exits if error found.
- -t,--totalmem #
- Allocate total ram - (n * 1M) for testing. If -totalmem is not called then the free space is used.
- -th #,--threads #
- Maximum number of threads. Spawn 1-n threads, the default is the number of CPUs.
- -ts #,--tstart #
- Starting thread count, after the initial calibration pass loop from tstart to threads, the default is 1
- Verbose, print detailed results, for memory tests prints address and data info for the first 16 errors, default is PASS/FAIL only.
- Very Very verbose, for memory tests run a second check pass to help determine if it's a read or write problem
The default is to run all tests unless at least one individual test group is selected. Report and log files:
- The default report and log names are sys_basher.rpt and sys_basher.log The the default name can be overridden with the -r switch.
- Running log. Syncs are executed after each test so that this file can be preserved up to the point of a crash.
- Summary report file.
- Comma separated report files for each thread count. These files can be read into a spreadsheet.
- RHEL7/CentOS7/SL7 systems have an aggressive OOM killer which sometimes interferes with sys_basher.
You can disable the OOM killer for sys_basher by running (as root) sys_basher_disable_oom after starting sys_basher